Ludmilla Wightman

Dear Mary Balogh, I was rereading “Chance Encounter” and wondering how the beloved brother John felt that the 10,000 pounds (in enormous sum at the time) belongs to him and not to his sister. Even if paid by Robert and not his uncle to get rid of his wife, it still was her money! And she worked to be independent!
I would also like to know how an impoverished aristocrat got money by marrying his progeny to a rich person: A Matter of Class, A Family holiday?